Jack for loading or unloading cars



(No Model.)

I, Q. W. MORRISON.

JACK FOR LOADING 0R UNLOADING- CARS. N0. 502,049.v

Patented July 25, 1893.

UNIT D STATES PATENT OF ICE.

QUIN W. MORRISON, OF ST. LOUIS, MISSOURI.

JACK FOR LOADING OR UNLOADING CARS.

SPECIFICATION forming'part of Letters Patent No. 502,049, dated July 25, 1893.

' Application flled March 31, 1893. Serial No. 468,505. (No model.)

To all whom it may concern:

Be it known that I, QUIN W. MORRISON, a citizen of the United States of America, residing at St. Louis, Missouri, have invented certain new and useful Improvements in Jacks for Loading or Unloading Cars, of which the following is a specification.

My invention is an improved loading jack for loading and unloading railroad rails, bar iron, iron pipes, lumber, and like articles onto or from freight cars; and the object of the invention is to provide asimple device capable of ready attachment to the frame or cats ing of a freight or box car to facilitate the loading or unloading of said car.

A further object is to provide a simple and efiective device which may be secured atwill to either side of the doorway of a box car and which will be securely braced in position and also will prevent defacing or injury of the side of the doorway.

In the drawings, Figure 1, represents aside elevation of a portion of a car with my improved jack attached to the side of the doorway. Fig. 2, is a detail perspective view of the jack removed. Fig. 3, illustrates a modified form of clamp.

In the drawings the car shown at A is representative of any ordinary freight car, and B represents the doorway to the side or casing of which is secured the improved jack. The jack comprises a clamping portion 0 from which project the rods which carry the rollers against which the rails or other articles hear. The clamping portion or bracket comprises the bar 0, having the right angular arms d, and 6, between which there is sufficient space to permit of their embracing the door post or casing of the doorway. The end of the arm e is rough or provided with ribs or teeth as shown at d, to prevent slipping and the other arm d, carries a suitable clamping device for clamping the jack securely to the door post.

This clamp may be in the form of a screw rod f, seated in acorrespondingly screw threaded opening in the arm and provided with asuit able handle g, by means of which the rod may be turned. The inner end of this rod carries a clamping block it, having a corrugated or toothed surface as at h, with a swivel con= nection between the rod and block.

Instead of using a rod as a clamping means I may form a projection cn the end of the arm at as at t, (Fig. 3) upon which is mounted an eccentric 70, provided with a suitable operating handle it.

The rods or axles upon which the rollers are mounted are illustrated at l, m, and n, and are preferably "formed integral with the bar c, of the clamp. The longer one 1 extends out horizontally from the clamp and has the roller Z j ournaled thereon which is designed to support therail or other article to enable it to be easily moved. The rods or axles m, n, extend vertically from the bar 0, one above and the other below and carry the rollers m',n', which are similar to the roller Z except thatit is not necessary that they be so long. All three rollers are held in place by pins or similar fastenings as shown at 0.

When the jack is clamped to the door frame or casing it will be observed that the roller Z projects horizontally as described and serves from striking against the side of the car and defacing or injuring the same. The weight upon the horizontal roller will cause the same to settle slightly which will bring the lower roller into contact with the door frame or casing, and in this position it will act as a brace andprevent further downward movement. I find it desirable to enlarge the outer end of the horizontal roller as at Z forming an incline or flange as this will prevent the rail or bar from accidentally slipping 0E.

When the requirements of the work are such that it is desirable to place the jack upon the other side of the doorway the position of the parts will be reversed and the roller which before served asa brace willnowbe above and serve as a brace while the roller which before was above will be belowand serve as a brace. It will thus be seen that the jack may be placed upon either side of the doorway and the action in each case will be precisely the same.

I claim- 1. In combination with afreight car, a jack therefor consisting of a suitable clamp adapted to engage the door casing, a horizontal arm carrying a roller extending from said clamp and vertical rollers journaled upon arms above and below at the base of said horizontal roller whereby the jack may be clamped to either side of the doorway and one of said vertical rollers will serve as a guard for the 5 casing above the horizontal roller and the other as a brace below, substantially as described.

2. In combination with a freight car, a jack therefor comprising a bar having angular ex- IO tended arms embracing the door casing of said car, a clamping device carried by one of In testimony whereof I affix my signature in presence of two witnesses.

QUIN W. MORRISON.

Witnesses:

ANTHONY BOYCE, LINDSAY J. WATSON. 

